How to resolve empty inputdlg box issue?

Lillian - 2020-07-13T11:51:34+00:00

Question: How to resolve empty inputdlg box issue?

I have a inputdlg box. I want the inputdlg box to cancel the processing if the user pressed OK without giving any input in the inputdlg box. How can I do that? I know how to cancel the processing if Cancel or the close button is pressed.

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Expert Answer

Neeta Dsouza answered . 2025-11-20

Try this:

 

a = inputdlg('Type a number:')
if isempty(a{:})
    disp('a is empty')                                      % Information Only To Demonstrate That The Test Works
    return
end
fprintf('a = %f\n', str2double(a))

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